Lubrication system of internal-combustion engines



l F. w. MEAD. l LUBRICATION SYSTEM 0F INTERNAL COMBUSTION ENGINES.

Patented Sept. 5, 1922.,

APPLICATION FILED MAY I3, 1922.-

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IIIII'I LIN F` w. MEAD;

LUBRI/CATION SYSTEM 0F INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAY I3, I922.

LAQST?.

Patented Sept. 5, 1922.

UNITED STATS PATENT OFFI t" FREDERICK WILLIAM MEAD, OF- SOLIHULL, ENGLAND.

Application led May 13,

To aZl whom it may concern.'

l Be it known that I, FREDERICK WILLIAM MEAD, a subject of the King yof England residing at Solihull, inthe countyA of Warwick, England, have invented certain new andQ useful Improvements in Lubrication Systems of Internal-Combustion Engines, of which the following is a specification.

This invention relates to vinternal combustion engines of the type in which the valves are actuated by a camshaft arranged above the cylinderheads, and the object is to pro-- vide a simple means for lubricating the camshaft bearings and'associated parts.v

In the accompanying drawings,

Figure lisa side elevation partly in section of a four cylinder enginefembodyi'ng this invention, and

Figure 2 is an end view of the same partly in section on the line 2-2.

Like letters indicate like parts throughout the drawings. l A

In this construction, a;v conduit A is arranged near the iywheel B, and the flywheel dips into a sump C so that it forces oil up the conduit 'in the well known manner, enabling a separate pump to be dispensed with.

This conduit leads to a reservoir D in which is located the bearings E for one end of the camshaft F. The reservoir may be of comparatively large capacity, and there mayfbe a ring lubricator or some equivalent deviceto ensure the oil in the reservoir feeding the bearing for a long period even if the circulation of oil ceases.

-F rom this reservoir extends a pipe G to another reservoir H arranged around the l other camshaft bearingor bearings J. The

pipe G is preferably arranged over the camshaft and has in it outlets such as K opposite each cam so that the oilA is sprayed on to each, cam, rocker, etc. Preferably the outlets are of comparatively and are obstructed to a varying extent by means` of an adjustable plug in each outlet, which ma take the form of a split pin as shown. hus ifvan outletchokes up it is only necessary to move the split pin .when it will automatically clean itself. Further, by varying the spread of the split pin the camshaft. From `said over-How pip large diameter` 1922. Serialv No. 560,630.

amount of obstruction ofthe outlet may be varied and by this means it is possible to provide, 1n avery cheap manner, a very delicate feed of oil to each cam with easy means for cleaning.

The reservoir J is similar to the one D, and it has an overow at J2 into an adjoining compartment L in which is arranged the bevel or skew gearingM N driving the this compartment there is an overflow O at a suitable height,- which ensures there being always sufficient oil in the compartment L to lubricate the gears N amply. The overfiow leads through pipe 2 the crankcase P communicating with the sump C.

By this means a very simplevand cheap systemis provided with means for ensuring certain lubrication should the circulation fail for a'short period.

What I claim as my invention and desire to secure by Letters Patent of the United States is i 1. In an internal combustion engine, the combination of valves in the cylinder head, a camshaft, a bearing for one end of said camshaft, a chamber enclosing said bearing, means for supplying oil to said chamber., a second bearingat the other end of said cam- Shaft, a second chamber enclosing said second bearing, an overflow pipe from said first chamber adapted to conduct oil to said second chamber, outlets in said pipe adapted to feed oil on to said cams, a split obstruction in each 'of said outlets, ygearing for driving said camshaft, a chamber enclosin said gearing, an-overflow pipe from sai second chamber to` second chamber enclosing said gearing, substantially as set forth.

2. The device of claim l, said split obstruction including a split pin penetrating e. In testimony whereof vI have name'to this specification in the two subscribing witnesses.

FREDERICK WILLIAM MEAD.

signed my presence of Witnesses:

HARRY MOULD, THOMAS WILLIAM DEAKIN. 

